Unit 3 · Level 1 · Wallet anatomy
Review: wallet whisperer
This unit turned addresses into characters: key-controlled EOAs vs code-controlled contract wallets, nonces and first-transactions as biographies, labels as a helpful-but-fallible map, and hop-by-hop tracing as your detective walk. Let's see how much of the wallet whisperer stuck.
Free to play. No ads, no token, no account needed to start.
What you get asked
Match each clue to its reading
Code, counters, labels, links: four small clues that together describe almost any wallet you'll meet.
A project's entire treasury sits in a single EOA. Why does that worry a chain reader?
One key, one point of failure. Serious teams use multisigs so no single person (or single hack) controls the funds.
A brand-new wallet claiming to be a famous team has no ___, and history is the one thing that can't be faked afterwards.
Names, websites, and even labels can be spoofed cheaply. Months of consistent on-chain activity can't be conjured retroactively.
Why does a money trail 'go quiet' when funds enter an exchange?
The deposit is public; what happens to it inside the exchange's books is not. From there, identifying the account holder is an off-chain, legal-process affair.
What's the balanced, honest view of explorer labels?
Use the map, check the terrain. That mix of speed and scepticism is exactly the investigator's mindset you'll need in the final unit. 🐜
The rest of this unit
Every address tells a story: age, habits, identity, and where the money went.